EP1972294A1 - Surgical microscope system - Google Patents
Surgical microscope system Download PDFInfo
- Publication number
- EP1972294A1 EP1972294A1 EP08005383A EP08005383A EP1972294A1 EP 1972294 A1 EP1972294 A1 EP 1972294A1 EP 08005383 A EP08005383 A EP 08005383A EP 08005383 A EP08005383 A EP 08005383A EP 1972294 A1 EP1972294 A1 EP 1972294A1
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- EP
- European Patent Office
- Prior art keywords
- link
- pivot
- stereoscopic
- surgical microscope
- display device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
- A61B2090/5025—Supports for surgical instruments, e.g. articulated arms with a counter-balancing mechanism
- A61B2090/504—Supports for surgical instruments, e.g. articulated arms with a counter-balancing mechanism with a counterweight
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/50—Supports for surgical instruments, e.g. articulated arms
- A61B2090/506—Supports for surgical instruments, e.g. articulated arms using a parallelogram linkage, e.g. panthograph
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/20—Surgical microscopes characterised by non-optical aspects
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/36—Image-producing devices or illumination devices not otherwise provided for
- A61B90/37—Surgical systems with images on a monitor during operation
Definitions
- the present invention relates to a surgical microscope system which shows stereoscopic magnified views of an objective body part through both a main optical system and a sub-system.
- Japanese Patent Application Laid-open No. H11-244301 discloses a related art in which a surgical microscope provides a stereoscopic magnified view of an objective body part for a surgeon and another eyepiece provides a monocular magnified view for an assistant (or a trainee of the operation, or such).
- the assistant is merely allowed to observe the monocular view and cannot observe a stereoscopic view in common with, and further simultaneously with, the surgeon.
- the eyepiece for the assistant accompanies movement of the surgical microscope when the surgeon moves the surgical microscope for the purpose of changing views.
- the present invention is intended for providing a surgical microscope system which provides stereoscopic magnified views of an objective body part for both a main person and an assistant person simultaneously and independently.
- a surgical microscope system is comprised of a stand including a movable base and a support capable of free motion with keeping a particular orientation relative to the base, a stereoscopic surgical microscope linked with the support, the microscope including a pair of first optical systems so as to provide a first stereoscopic magnified view; and a stereoscopic display device having a movable link with the stand, the display device Including a display screen configured to display stereoscopic image taken by the first optical systems and a pair of second optical systems so as to show the stereoscopic image as a second stereoscopic magnified view.
- the surgical microscope system is further comprised of a camera optically coupled with the first optical systems and electronically coupled with the display screen so as to project the stereoscopic image onto the display screen.
- the camera is comprised of a pair of imagers respectively optically coupled with the first optical systems to take the stereoscopic image.
- the display screen is comprised of a pair of separate screens respectively electronically coupled with the imagers.
- the surgical microscope system is further comprised of a subsidiary arm linked with the support and the stereoscopic display device to enable the movable link of the stereoscopic display device. Still preferably, the surgical microscope system is comprised of a subsidiary arm linked with the base and the stereoscopic display device to enable the movable link of the stereoscopic display device.
- the stand is comprised of a parallel linkage including paired parallel first and second standing links and paired parallel upper and lower lying links, an intermediate portion of the first standing link being pivotally supported through a first pivot to a main body of the stand, the upper lying link having a joint shaft to pivotally link with the first standing link and being kept horizontal; a supporting link extended from the upper lying link; a tip linkpivotally supported to the supporting link via a first tip link pivot at a distal end of the supporting link, the tip link supporting the microscope and the display device; a crank member pivotally supported by the joint shaft, the crank member having a first crank pivot and a second crank pivot so dimensioned as to have a line formed of the first crank pivot and the joint shaft kept horizontal and have a line formed of the second crank pivot and the joint shaft kept vertical; a standing sub-link pivoted on a second pivot formed on the main body and on the first crank pivot of the crank member, the standing sub-link having a length so as to have the first pivot, the first crank pivot,
- Figs. 1 to 8 Exemplary embodiments of the present invention will be describedhereinafter with reference to Figs. 1 to 8 .
- directions are defined and used to correspond to directions shown in Figs. 1 and 2 .
- a relative term "distal” in regard to any member longer than is wide is defined and used as distal from a base 2 in its connection order from the base 2, and "proximal” is opposite thereto.
- a surgical microscope system is comprised of a stand 1, which is comprised of a base 2 and casters 3 for enabling the base 2 to move on a floor 4.
- a vertical pivot a1 is fixed to an upper face of the base 2 and a main body 5 having a C-letter-like shape is pivotally supported by the pivot a1.
- the pivot a1 is further comprised of a clutch system such as, but not limited to, an electromagnetic clutch so as to controllably free and lock rotation of the main body 5 about the pivot a1.
- the main body 5 is comprised of a horizontal pivot b1 in the vicinity of a top thereof, which pivotally supports a parallel linkage mechanism 6.
- the parallel linkage mechanism 6 includes paired parallel standing links 7 and 8 and paired parallel lying links 9 and 10, which are mutually linked at respective ends via pivots b2, b3 and b4 and a joint shaft b5.
- a pivotal support of the parallel linkage mechanism 6 by the pivot b1 is made on a proper intermediate portion of the link 7 between both the pivot b4 and the joint shaft b5.
- the pivot b1 allows swinging motion S1 of the link 7 and is also comprised of a clutch system such as, but not limited to, an electromagnetic clutch so as to controllably free and lock the swinging motion of the link 7.
- the standing link 7, in particular an upper part relative to the pivot b1, may be curved leftward to avoid interference with an operation to be carried out at the right side of the main body 5.
- An end of the lying link 10 at the lower side is linked with the link 7 via the pivot b4 and a counter end thereof is comprised of a counter weight 11 to keep balance with weights weighing on the parallel linkage mechanism 6.
- the lying link 9 at the upper side is extended to form a supporting link 12 projecting rightward.
- a tip link 13 is pivotally supported by a pivot b6 at a distal end of the supporting link 12.
- the supporting link 12 is also curved upward so as to avoid interference with the operation to be carried out below the supporting link 12.
- a lower end of the tip link 13 is comprised of a support box 14 formed in a box shape and made rotatable about a vertical axis a2.
- the support box 14 supports a stereoscopic surgical microscope 15 and a stereoscopic display device 16 as will be described later.
- the parallel link mechanism 6 further includes a crank member 17 and sub-links 18 and 19.
- the crank member 17 is pivotally supported by the joint shaft b5 and has a substantially right-angled L-letter shape, which is comprised of a crank pivot b7 in the vicinity of an end of its horizontal portion and a crank pivot b8 in the vicinity of an upper end of its vertical portion.
- the pivot b7 pivotally supports the standing sub-link 18.
- An opposite end of the sub-link 18 is pivoted on a pivot b9 formed on the main body 5.
- the sub-link 18 has the same length as a length between the pivot b1 and the joint shaft b7. More specifically, the sub-link 18, the standing link 7, the crank member 17 and the main body 5 are so formed as to have the pivots b1, b7 and b9 and the joint shaft b5, to form vertexes of a parallelogram.
- the pivot b8 also pivotally supports the lying sub-link 19.
- An opposite end of the sub-link 19 is pivoted on a pivot b10 formed on the tip link 13.
- the sub-link 19 has the same length as a length between the pivot b6 and the joint shaft b7. More specifically, the sub-link 19, the lying supporting link 12, the crank member 17 and the tip link 13 are so formed as to have the joint shaft b5 and the pivots b6, b10 and b8 to form vertexes of a parallelogram. Thereby the axis a2, therefore the support box 14 as well, is steadily kept vertical even while the parallel linkage mechanism 6 swings. More specifically, the parallel linkage mechanism 6 allows the support box 14 to be capable of free motion with keeping a particular orientation of verticality.
- the stereoscopic surgical microscope 15 is fixedly supported by the support box 14 kept vertical via an interposed hanging arm 20 formed to be a C-letter shape.
- a lower end of the hanging arm 20 is comprised of a joint 21 to allow the stereoscopic surgical microscope 15 to be in rolling motion S3 about a longitudinal axis and rocking motion S4 about a horizontal axis H3.
- the stereoscopic surgical microscope 15 is comprised of a pair of optical systems, each having an object lens system, a zoom lens system and an eye lens system so as to magnify an objective body part.
- the paired optical systems generate binocular parallax so that a surgeon A looking into eyepieces 22 is given a stereoscopic magnified view of the objective body part.
- the stereoscopic surgical microscope 15 is further comprised of a camera 23 optically coupled with the paired optical systems thereof. As bundles of rays respectively introduced through the optical systems are partly branched and introduced into the camera 23, the camera 23 is capable of taking stereoscopic image.
- the camera 23 may be comprised of paired imagers so as to take right and left images independently, which consist the stereoscopic image.
- Color image sensors may be applied to the camera 23 so as to provide color images, however, alternatively or additionally, fluorescence sensors, spectroscopic image sensors or such analytic sensors may be applied to the camera 23. Such sensors provide different information from the visible ray views observable in the stereoscopic surgical microscope 15.
- the stereoscopic display device 16 is movably supported by the support box 14 via a subsidiary arm 24.
- the subsidiary arm 24 is comprised of a first arm 25, a second arm 26, and a third arm 27.
- a proximal end of the first arm 25 is swingably pivoted on a pivot b11 formed on the support box 14.
- the pivot b11 is comprised of a clutch system such as, but not limited to, an electromagnetic clutch so as to controllably free and lock the swinging motion of the first arm 25.
- the proximal end of the first arm 25 is further comprised of another clutch system C1 such as, but not limited to, an electromagnetic clutch.
- a distal end of the first arm 25 has a pivot b12 to pivotally support the vicinity of a proximal end of the second arm 26.
- a timing belt D1 housed in the first arm 25 links the clutch system C1 with the pivot b12 so as to controllably free and lock the swinging motion of the second arm 26 about the pivot b12.
- the proximal end of the second arm 26 is further comprised of another clutch system C2 such as, but not limited to, an electromagnetic clutch.
- a distal end of the second arm 26 has a pivot b13 to pivotally support the third arm 27.
- a timing belt D2 housed in the second arm 26 links the clutch system C2 with the pivot b13 so as to controllably free and lock the swinging motion of the third arm 27 about the pivot b13.
- a distal end of the third arm 27 has a pivot b14 to pivotally support the stereoscopic display device 16.
- the stereoscopic display device 16 has such a movable link with the support so as to be movable independently of the stereoscopic surgical microscope 15.
- the pivot b14 is given proper friction, thereby the stereoscopic display device 16 is capable of swinging about the pivot b14 under the proper friction.
- the clutch systems of the subsidiary arm 24 may be collectively controlled by a single switch or such (not shown). Then the subsidiary arm 24 may be folded so as to retract the stereoscopic display device 16 to a space between the support box 14 and the stereoscopic surgical microscope 15 as shown in Fig. 6 .
- the stereoscopic display device 16 is comprised of a case 28, a display screen 29 housed in the case 28, and a partition 30 spatially partitioning the interior of the case 28.
- the display screen 29 is capable of projecting two independent images respectively on right and left halves thereof, or alternatively may be partitioned into right and left screens for respectively projecting right and left images.
- the display screen 29 is electronically coupled with the camera 23 so as to project the right and left images respectively on the right and left halves.
- the case 28 is comprised of right and left optical systems, each of which has an eyepiece 31 and an object lens 32, for respectively showing the right and left images to the right and left eyes 33 of an assistant B so that the assistant B is given a stereoscopic magnified view of the objective body in common with the surgeon A.
- the coupling of the display screen 29 with the optical systems of the stereoscopic surgical microscope 15 is stated to be electronic in the above description, the coupling may be alternatively established by optical means or any other means.
- Any information regarding the operation such as vital signs or what are taken by CT, MRI and such, may be also superimposed on the images on the display screen 29.
- Weights of the stereoscopic surgical microscope 15, the stereoscopic display device 16 and such weighing on one side of the parallel linkage mechanism 6 in total is balanced with the counter weight 11. Therefore, when the clutch systems of the stand 1 are all set to free the respective motions, one can move the stereoscopic surgical microscope 15 and the stereoscopic display device 16 merely with gentle force by hand. When he/she detaches the hand therefrom, the stereoscopic surgical microscope 15 stands still where it is moved, as the counter weight 11 keeps the balance. The balance is steadily kept without re-balancing even though the subsidiary arm 24 is folded or any other change occurs.
- the aforementioned first embodiment may be modified into a second embodiment as will be described hereinafter with reference to Fig. 8 .
- the stereoscopic display device 16 is supported directly by the base 2 of the stand 1 instead of being supported by the support box 14.
- a subsidiary arm 34 includes a stiff standing pole 35 securely fixed to the base 2 as well as the arms 25, 26 and 27 having substantially the same structure as those aforementioned.
- the distal end of the third arm 27 swingably supports the stereoscopic display device 16 in the same way as those of the first embodiment.
- the base 2 is the most stabilized member among members of the surgical microscope system, stability of views displayed by the stereoscopic display device 16 can be assured.
- the stereoscopic display device 16 of the second embodiment serves views not only to the assistant B but also to the surgeon A as the stereoscopic display device 16 can be positioned just beside the stereoscopic surgical microscope 15 and is oriented toward the surgeon A.
- This structure provides another benefit to the surgeon A because the surgeon A can immediately check information displayed in the stereoscopic display device 16 particularly when it displays different information from the stereoscopic surgical microscope 15.
- the stereoscopic display device 16 may be supported by any member such as the main body 5 or any part of the parallel linkage mechanism 6 instead of the base 2 or the support box 14.
- another stereoscopic display device may be further provided on any member or apart from the stand 1 so as to distribute views to plural members.
- the present invention will be enabled by any of or any combination of the aforementioned exemplary embodiments.
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Abstract
Description
- The present invention relates to a surgical microscope system which shows stereoscopic magnified views of an objective body part through both a main optical system and a sub-system.
- Some surgeries such as brain surgeries require operations performed by microscopy. For such uses, surgical microscopes having very long focal distances are usually used.
Japanese Patent Application Laid-open No. H11-244301 - The present invention is intended for providing a surgical microscope system which provides stereoscopic magnified views of an objective body part for both a main person and an assistant person simultaneously and independently.
- In accordance with an aspect of the present invention, a surgical microscope system is comprised of a stand including a movable base and a support capable of free motion with keeping a particular orientation relative to the base, a stereoscopic surgical microscope linked with the support, the microscope including a pair of first optical systems so as to provide a first stereoscopic magnified view; and a stereoscopic display device having a movable link with the stand, the display device Including a display screen configured to display stereoscopic image taken by the first optical systems and a pair of second optical systems so as to show the stereoscopic image as a second stereoscopic magnified view.
- Preferably, the surgical microscope system is further comprised of a camera optically coupled with the first optical systems and electronically coupled with the display screen so as to project the stereoscopic image onto the display screen. More preferably, the camera is comprised of a pair of imagers respectively optically coupled with the first optical systems to take the stereoscopic image. Still more preferably, the display screen is comprised of a pair of separate screens respectively electronically coupled with the imagers.
- Still preferably, the surgical microscope system is further comprised of a subsidiary arm linked with the support and the stereoscopic display device to enable the movable link of the stereoscopic display device. Still preferably, the surgical microscope system is comprised of a subsidiary arm linked with the base and the stereoscopic display device to enable the movable link of the stereoscopic display device. More preferably, the stand is comprised of a parallel linkage including paired parallel first and second standing links and paired parallel upper and lower lying links, an intermediate portion of the first standing link being pivotally supported through a first pivot to a main body of the stand, the upper lying link having a joint shaft to pivotally link with the first standing link and being kept horizontal; a supporting link extended from the upper lying link; a tip linkpivotally supported to the supporting link via a first tip link pivot at a distal end of the supporting link, the tip link supporting the microscope and the display device; a crank member pivotally supported by the joint shaft, the crank member having a first crank pivot and a second crank pivot so dimensioned as to have a line formed of the first crank pivot and the joint shaft kept horizontal and have a line formed of the second crank pivot and the joint shaft kept vertical; a standing sub-link pivoted on a second pivot formed on the main body and on the first crank pivot of the crank member, the standing sub-link having a length so as to have the first pivot, the first crank pivot, the second pivot and the joint shaft to form vertexes of a parallelogram; a lying sub-link pivoted on the second crank pivot and pivoted on a tip link pivot of the tip link, the lying sub-link having a length so as to have the joint shaft, the first tip link pivot, the second tip link pivot and the second crank pivot to form vertexes of a parallelogram; a counter weight provided below the parallel linkage mechanism to keep balance with a weight applied in a lowering direction of the parallel linkage mechanism about the first pivot whereby the free motion with keeping the particular orientation of the support relative to the movable base is enabled.
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Fig. 1 is a side view of a surgical microscope system according to a first embodiment of the present invention; -
Fig. 2 is a partially exploded side view of the surgical microscope system; -
Fig. 3 is a perspective view of a stereoscopic surgical microscope, a stereoscopic display device and respective observing persons thereof; -
Fig. 4 is a side view of the stereoscopic surgical microscope and the stereoscopic display device; -
Fig. 5 is a side view of the stereoscopic display device and a subsidiary arm supporting the stereoscopic display device; -
Fig. 6 is a side view of the stereoscopic display device and the subsidiary arm, which shows a state that the subsidiary arm is folded so as to retract the stereoscopic display device; -
Fig. 7 is a sectional plan view of the stereoscopic display device; and -
Fig. 8 is a side view of a surgical microscope system according to a second embodiment of the present invention. - Exemplary embodiments of the present invention will be describedhereinafter with reference to
Figs. 1 to 8 . Throughout the specification and claims, directions are defined and used to correspond to directions shown inFigs. 1 and2 . Further, a relative term "distal" in regard to any member longer than is wide is defined and used as distal from abase 2 in its connection order from thebase 2, and "proximal" is opposite thereto. - Referring to
Figs. 1 and2 , a surgical microscope system is comprised of astand 1, which is comprised of abase 2 andcasters 3 for enabling thebase 2 to move on afloor 4. A vertical pivot a1 is fixed to an upper face of thebase 2 and amain body 5 having a C-letter-like shape is pivotally supported by the pivot a1. The pivot a1 is further comprised of a clutch system such as, but not limited to, an electromagnetic clutch so as to controllably free and lock rotation of themain body 5 about the pivot a1. - The
main body 5 is comprised of a horizontal pivot b1 in the vicinity of a top thereof, which pivotally supports aparallel linkage mechanism 6. Theparallel linkage mechanism 6 includes paired parallel standinglinks links 9 and 10, which are mutually linked at respective ends via pivots b2, b3 and b4 and a joint shaft b5. A pivotal support of theparallel linkage mechanism 6 by the pivot b1 is made on a proper intermediate portion of thelink 7 between both the pivot b4 and the joint shaft b5. The pivot b1 allows swinging motion S1 of thelink 7 and is also comprised of a clutch system such as, but not limited to, an electromagnetic clutch so as to controllably free and lock the swinging motion of thelink 7. - The standing
link 7, in particular an upper part relative to the pivot b1, may be curved leftward to avoid interference with an operation to be carried out at the right side of themain body 5. An end of the lyinglink 10 at the lower side is linked with thelink 7 via the pivot b4 and a counter end thereof is comprised of acounter weight 11 to keep balance with weights weighing on theparallel linkage mechanism 6. - The lying link 9 at the upper side is extended to form a supporting
link 12 projecting rightward. Atip link 13 is pivotally supported by a pivot b6 at a distal end of the supportinglink 12. The supportinglink 12 is also curved upward so as to avoid interference with the operation to be carried out below the supportinglink 12. - A lower end of the
tip link 13 is comprised of asupport box 14 formed in a box shape and made rotatable about a vertical axis a2. Thesupport box 14 supports a stereoscopicsurgical microscope 15 and astereoscopic display device 16 as will be described later. - The
parallel link mechanism 6 further includes acrank member 17 andsub-links crank member 17 is pivotally supported by the joint shaft b5 and has a substantially right-angled L-letter shape, which is comprised of a crank pivot b7 in the vicinity of an end of its horizontal portion and a crank pivot b8 in the vicinity of an upper end of its vertical portion. - The pivot b7 pivotally supports the standing
sub-link 18. An opposite end of thesub-link 18 is pivoted on a pivot b9 formed on themain body 5. Thesub-link 18 has the same length as a length between the pivot b1 and the joint shaft b7. More specifically, thesub-link 18, the standinglink 7, thecrank member 17 and themain body 5 are so formed as to have the pivots b1, b7 and b9 and the joint shaft b5, to form vertexes of a parallelogram. Thereby, even while theparallel linkage mechanism 6 swings, a line H1 passing both axes of the joint shaft b5 and the pivot b7 is steadily kept horizontal as a line H2 passing both axes of the pivots b1 and b9 is made to be horizontal. Moreover, a line V passing both axes of the joint shaft b5 and the pivot b8 is steadily kept vertical as the crank member (17) is formed in the right-angled L-letter shape. - Because of the aforementioned parallelism and the right-angularity of the
crank member 17, a line V passing both axes of the pivots b8 and the joint shaft b5 is steadily kept vertical. The pivot b8 also pivotally supports the lyingsub-link 19. An opposite end of thesub-link 19 is pivoted on a pivot b10 formed on thetip link 13. Thesub-link 19 has the same length as a length between the pivot b6 and the joint shaft b7. More specifically, thesub-link 19, the lying supportinglink 12, thecrank member 17 and thetip link 13 are so formed as to have the joint shaft b5 and the pivots b6, b10 and b8 to form vertexes of a parallelogram. Thereby the axis a2, therefore thesupport box 14 as well, is steadily kept vertical even while theparallel linkage mechanism 6 swings. More specifically, theparallel linkage mechanism 6 allows thesupport box 14 to be capable of free motion with keeping a particular orientation of verticality. - Referring to
Figs. 3 and4 , the stereoscopicsurgical microscope 15 is fixedly supported by thesupport box 14 kept vertical via an interposed hangingarm 20 formed to be a C-letter shape. A lower end of the hangingarm 20 is comprised of ajoint 21 to allow the stereoscopicsurgical microscope 15 to be in rolling motion S3 about a longitudinal axis and rocking motion S4 about a horizontal axis H3. - The stereoscopic
surgical microscope 15 is comprised of a pair of optical systems, each having an object lens system, a zoom lens system and an eye lens system so as to magnify an objective body part. As the optical systems are provided in pair, the paired optical systems generate binocular parallax so that a surgeon A looking intoeyepieces 22 is given a stereoscopic magnified view of the objective body part. - The stereoscopic
surgical microscope 15 is further comprised of acamera 23 optically coupled with the paired optical systems thereof. As bundles of rays respectively introduced through the optical systems are partly branched and introduced into thecamera 23, thecamera 23 is capable of taking stereoscopic image. Thecamera 23 may be comprised of paired imagers so as to take right and left images independently, which consist the stereoscopic image. Color image sensors may be applied to thecamera 23 so as to provide color images, however, alternatively or additionally, fluorescence sensors, spectroscopic image sensors or such analytic sensors may be applied to thecamera 23. Such sensors provide different information from the visible ray views observable in the stereoscopicsurgical microscope 15. - Referring to
Figs. 4 and5 , thestereoscopic display device 16 is movably supported by thesupport box 14 via asubsidiary arm 24. Thesubsidiary arm 24 is comprised of afirst arm 25, asecond arm 26, and athird arm 27. - A proximal end of the
first arm 25 is swingably pivoted on a pivot b11 formed on thesupport box 14. The pivot b11 is comprised of a clutch system such as, but not limited to, an electromagnetic clutch so as to controllably free and lock the swinging motion of thefirst arm 25. - The proximal end of the
first arm 25 is further comprised of another clutch system C1 such as, but not limited to, an electromagnetic clutch. A distal end of thefirst arm 25 has a pivot b12 to pivotally support the vicinity of a proximal end of thesecond arm 26. As shown inFig. 5 , a timing belt D1 housed in thefirst arm 25 links the clutch system C1 with the pivot b12 so as to controllably free and lock the swinging motion of thesecond arm 26 about the pivot b12. - The proximal end of the
second arm 26 is further comprised of another clutch system C2 such as, but not limited to, an electromagnetic clutch. A distal end of thesecond arm 26 has a pivot b13 to pivotally support thethird arm 27. A timing belt D2 housed in thesecond arm 26 links the clutch system C2 with the pivot b13 so as to controllably free and lock the swinging motion of thethird arm 27 about the pivot b13. - A distal end of the
third arm 27 has a pivot b14 to pivotally support thestereoscopic display device 16. Thestereoscopic display device 16 has such a movable link with the support so as to be movable independently of the stereoscopicsurgical microscope 15. The pivot b14 is given proper friction, thereby thestereoscopic display device 16 is capable of swinging about the pivot b14 under the proper friction. - The clutch systems of the
subsidiary arm 24 may be collectively controlled by a single switch or such (not shown). Then thesubsidiary arm 24 may be folded so as to retract thestereoscopic display device 16 to a space between thesupport box 14 and the stereoscopicsurgical microscope 15 as shown inFig. 6 . - Referring to
Fig. 7 , thestereoscopic display device 16 is comprised of acase 28, adisplay screen 29 housed in thecase 28, and apartition 30 spatially partitioning the interior of thecase 28. Thedisplay screen 29 is capable of projecting two independent images respectively on right and left halves thereof, or alternatively may be partitioned into right and left screens for respectively projecting right and left images. - The
display screen 29 is electronically coupled with thecamera 23 so as to project the right and left images respectively on the right and left halves. Thecase 28 is comprised of right and left optical systems, each of which has aneyepiece 31 and anobject lens 32, for respectively showing the right and left images to the right andleft eyes 33 of an assistant B so that the assistant B is given a stereoscopic magnified view of the objective body in common with the surgeon A. Although the coupling of thedisplay screen 29 with the optical systems of the stereoscopicsurgical microscope 15 is stated to be electronic in the above description, the coupling may be alternatively established by optical means or any other means. - Any information regarding the operation, such as vital signs or what are taken by CT, MRI and such, may be also superimposed on the images on the
display screen 29. - Weights of the stereoscopic
surgical microscope 15, thestereoscopic display device 16 and such weighing on one side of theparallel linkage mechanism 6 in total is balanced with thecounter weight 11. Therefore, when the clutch systems of thestand 1 are all set to free the respective motions, one can move the stereoscopicsurgical microscope 15 and thestereoscopic display device 16 merely with gentle force by hand. When he/she detaches the hand therefrom, the stereoscopicsurgical microscope 15 stands still where it is moved, as thecounter weight 11 keeps the balance. The balance is steadily kept without re-balancing even though thesubsidiary arm 24 is folded or any other change occurs. - The aforementioned first embodiment may be modified into a second embodiment as will be described hereinafter with reference to
Fig. 8 . - In accordance with the second embodiment, the
stereoscopic display device 16 is supported directly by thebase 2 of thestand 1 instead of being supported by thesupport box 14. Asubsidiary arm 34 includes astiff standing pole 35 securely fixed to thebase 2 as well as thearms third arm 27 swingably supports thestereoscopic display device 16 in the same way as those of the first embodiment. - As the
base 2 is the most stabilized member among members of the surgical microscope system, stability of views displayed by thestereoscopic display device 16 can be assured. - The
stereoscopic display device 16 of the second embodiment serves views not only to the assistant B but also to the surgeon A as thestereoscopic display device 16 can be positioned just beside the stereoscopicsurgical microscope 15 and is oriented toward the surgeon A. This structure provides another benefit to the surgeon A because the surgeon A can immediately check information displayed in thestereoscopic display device 16 particularly when it displays different information from the stereoscopicsurgical microscope 15. - Further, the
stereoscopic display device 16 may be supported by any member such as themain body 5 or any part of theparallel linkage mechanism 6 instead of thebase 2 or thesupport box 14. In addition, another stereoscopic display device may be further provided on any member or apart from thestand 1 so as to distribute views to plural members. - The present invention will be enabled by any of or any combination of the aforementioned exemplary embodiments.
- Although the invention has been described above by reference to a certain embodiment of the invention, the invention is not limited to the embodiments described above. Modifications and variations of the embodiment described above will occur to those skilled in the art, in light of the above teachings.
Claims (7)
- A surgical microscope system comprising:a stand (1) including a movable base (2) and a support (14) capable of free motion with keeping a particular orientation relative to the base (2);a stereoscopic surgical microscope (15) linked with the support (14), the microscope (15) including a pair of first optical systems so as to provide a first stereoscopic magnified view; anda stereoscopic display device (16) having a movable link with the stand (1), the display device (16) including a display screen (29) configured to display a stereoscopic image taken by the first optical systems and a pair of second optical systems (31,32) so as to show the stereoscopic image as a second stereoscopic magnified view.
- The surgical microscope system of claim 1, further comprising:a camera (23) optically coupled with the first optical systems and electronically coupled with the display screen (29) so as to project the stereoscopic image onto the display screen (29).
- The surgical microscope system of claim 2, wherein the camera (23) includes a pair of imagers respectively optically coupled with the first optical systems to take the stereoscopic image.
- The surgical microscope system of claim 3, wherein the display screen (29) includes a pair of separate screens respectively electronically coupled with the imagers.
- The surgical microscope system of claim 1, further comprising:a subsidiary arm (24) linked with the support (14) and the stereoscopic display device (16) to enable the movable link of the stereoscopic display device (16).
- The surgical microscope system of claim 1, further comprising:a subsidiary arm (34) linked with the base (2) and the stereoscopic display device (16) to enable the movable link of the stereoscopic display device (16).
- The surgical microscope system of claim 5, wherein the stand (1) includes;
a parallel linkage (6) including paired parallel first and second standing links (7,8) and paired parallel upper and lower lying links (9,10), an intermediate portion of the first standing link (7) being pivotally supported through a first pivot (b1) to a main body (5) of the stand (1), the upper lying link (9) having a joint shaft (b5) to pivotally link with the first standing link (7) and being kept horizontal;
a supporting link (12) extended from the upper lying link (9);
a tip link (13) pivotally supported to the supporting link (12) via a first tip link pivot (b6) at a distal end of the supporting link (12), the tip link (13) supporting the microscope (15) and the display device (16);
a crank member (17) pivotally supported by the joint shaft (b5), the crank member (17) having a first crank pivot (b7) and a second crank pivot (b8) so dimensioned as to have a line (H1) formed of the first crank pivot (b7) and the joint shaft (b5) kept horizontal and have a line (V) formed of the second crank pivot (b8) and the joint shaft (b5) kept vertical;
a standing sub-link (18) pivoted on a second pivot (b9) formed on the main body (5) and on the first crank pivot (b7) of the crank member (17), the standing sub-link (18) having a length so as to have the first pivot (b1), the first crank pivot (b7), the second pivot (b9) and the joint shaft (b5) to form vertexes of a parallelogram;
a lying sub-link (19) pivoted on the second crank pivot (b8) and pivoted on a tip link pivot (b10) of the tip link (13), the lying sub-link (19) having a length so as to have the joint shaft (b5), the first tip link pivot (b6), the second tip link pivot (b10) and the second crank pivot (b8) to form vertexes of a parallelogram;
a counter weight (11) provided below the parallel linkage mechanism (6) to keep balance with a weight applied in a lowering direction of the parallel linkage mechanism (6) about the first pivot (b1) whereby the free motion with keeping the particular orientation of the support (14) relative to the movable base (2) is enabled.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007077616A JP4800248B2 (en) | 2007-03-23 | 2007-03-23 | Surgical microscope system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1972294A1 true EP1972294A1 (en) | 2008-09-24 |
EP1972294B1 EP1972294B1 (en) | 2014-05-07 |
Family
ID=39561778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08005383.8A Not-in-force EP1972294B1 (en) | 2007-03-23 | 2008-03-20 | Surgical microscope system |
Country Status (3)
Country | Link |
---|---|
US (1) | US8270073B2 (en) |
EP (1) | EP1972294B1 (en) |
JP (1) | JP4800248B2 (en) |
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Also Published As
Publication number | Publication date |
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EP1972294B1 (en) | 2014-05-07 |
US20080231948A1 (en) | 2008-09-25 |
JP2008237232A (en) | 2008-10-09 |
US8270073B2 (en) | 2012-09-18 |
JP4800248B2 (en) | 2011-10-26 |
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